- School starts Monday, Aug. 17, 2026 and ends Friday, June 4, 2027, an early release day, as planned. It can fall anywhere from Friday, June 4 to Friday, June 11: emergency days June 7 to 11 are added if needed.
- Thanksgiving break: Nov. 25 to 27. Students are out Wednesday, Nov. 25 to Sunday, Nov. 29, back Monday, Nov. 30.
- Winter break: Dec. 18 to Jan. 1. Students are out Friday, Dec. 18 to Monday, Jan. 4, back Tuesday, Jan. 5.
- Spring break: March 22 to 29. Students are out Friday, March 19 to Monday, March 29, back Tuesday, March 30.
- Four early release days for every school. Details below.
The D109 2026-27 calendar
This is the district's own calendar, as D109 publishes it. Tap it to open the full-size image.
Add the D109 calendar to your phone
Pick a file. Each one is an all-day event per day off or half day, and a break is one event across all its days.
Every date
First and last day, every day off, every early release and grading period dates. 33 events.
Download .ics
Holidays and breaks
Only the days with no school. 16 events.
Download .ics
Early release days
Only the half days. 4 events.
Download .ics
On an iPhone
Tap a file above, then tap Add All. The dates go into the calendar you choose.
In Google Calendar
On a computer, open Google Calendar, then Settings, then Import & export. Choose the file and the calendar to add it to. The dates show up on your Android phone too.
In Outlook
Open the downloaded file, or in Outlook on the web go to Add calendar, then Upload from file.
These files are a copy of the calendar today. If the district changes a date, download the file again.
D109 vacations and holidays, 2026-27
Every day with no school for students, from the first day to the last: 16 entries and 33 weekdays in all.
| Day off | Dates | Days of the week | School days off |
|---|---|---|---|
| Labor Day Holiday | Sept. 7 | Mon | 1 |
| No school Other | Sept. 21 | Mon | 1 |
| Legal holiday (no school) Holiday | Oct. 12 | Mon | 1 |
| Parent-teacher conferences (no school for students) Other | Oct. 23 | Fri | 1 |
| Election Day Holiday | Nov. 3 | Tue | 1 |
| Veterans Day Holiday | Nov. 11 | Wed | 1 |
| Thanksgiving break Break | Nov. 25 to 27 | Wed to Fri | 3 |
| Winter break Break | Dec. 18 to Jan. 1 | Fri to Fri | 11 |
| Teacher institute day (no school for students) Staff day | Jan. 4 | Mon | 1 |
| Martin Luther King Jr. Day Holiday | Jan. 18 | Mon | 1 |
| Teacher institute day (no school for students) Staff daySchool day instead if this emergency day is needed | Feb. 12 | Fri | 1 |
| Presidents' Day HolidaySchool day instead if this emergency day is needed | Feb. 15 | Mon | 1 |
| Casimir Pulaski Day HolidaySchool day instead if this emergency day is needed | March 1 | Mon | 1 |
| Parent-teacher conferences (no school for students) Other | March 19 | Fri | 1 |
| Spring break Break | March 22 to 29 | Mon to Mon | 6 |
| Memorial Day Holiday | May 31 | Mon | 1 |
D109 early release days
Four early release days in all.
| Date | Day | What | Dismissal | Who |
|---|---|---|---|---|
| Aug. 17 | Mon | First day of school, half day | Half day, time not printed | All schools |
| Oct. 22 | Thu | Parent-teacher conferences, half day (students attend in the morning) | Half day, morning only; time not printed | All schools |
| March 18 | Thu | Parent-teacher conferences, half day (students attend in the morning) | Half day, morning only; time not printed | All schools |
| June 4 | Fri | Last day of school, half day | Half day, morning only; time not printed | All schools |
Calendar notes: what to plan around
Long weekends and breaks
Every stretch of three or more days with no school, counting weekends. A half day next to a weekend adds half a day.
- 3-day weekend: Saturday, Sept. 5 to Monday, Sept. 7. Labor Day. Back Tuesday, Sept. 8.
- 3-day weekend: Saturday, Sept. 19 to Monday, Sept. 21. No school. Back Tuesday, Sept. 22.
- 3-day weekend: Saturday, Oct. 10 to Monday, Oct. 12. Legal holiday (no school). Back Tuesday, Oct. 13.
- 3.5-day weekend: Thursday, Oct. 22 at early dismissal to Sunday, Oct. 25. Parent-teacher conferences, half day (students attend in the morning) and Parent-teacher conferences (no school for students). Back Monday, Oct. 26.
- 5-day weekend: Wednesday, Nov. 25 to Sunday, Nov. 29. Thanksgiving break. Back Monday, Nov. 30.
- 18 days off in a row: Friday, Dec. 18 to Monday, Jan. 4. Winter break and teacher institute day (no school for students). Back Tuesday, Jan. 5.
- 3-day weekend: Saturday, Jan. 16 to Monday, Jan. 18. Martin Luther King Jr. Day. Back Tuesday, Jan. 19.
- 4-day weekend: Friday, Feb. 12 to Monday, Feb. 15. Teacher institute day (no school for students) and Presidents' Day. Back Tuesday, Feb. 16.
- 3-day weekend: Saturday, Feb. 27 to Monday, March 1. Casimir Pulaski Day. Back Tuesday, March 2.
- 11.5 days off in a row: Thursday, March 18 at early dismissal to Monday, March 29. Parent-teacher conferences, half day (students attend in the morning), Parent-teacher conferences (no school for students) and spring break. Back Tuesday, March 30.
- 3-day weekend: Saturday, May 29 to Monday, May 31. Memorial Day. Back Tuesday, June 1.
Weeks with fewer than five school days
Sixteen weeks have fewer than five school days, and three weeks have none at all.
| Week of | School days | Why |
|---|---|---|
| Sept. 7 | 4 | Labor Day |
| Sept. 21 | 4 | No school |
| Oct. 12 | 4 | Legal holiday (no school) |
| Oct. 19 | 4 | Parent-teacher conferences (no school for students) |
| Nov. 2 | 4 | Election Day |
| Nov. 9 | 4 | Veterans Day |
| Nov. 23 | 2 | Thanksgiving break |
| Dec. 14 | 4 | Winter break |
| Dec. 21 | 0 | Winter break |
| Dec. 28 | 0 | Winter break |
| Jan. 4 | 4 | Teacher institute day (no school for students) |
| Jan. 18 | 4 | Martin Luther King Jr. Day |
| Feb. 8 | 4 | Teacher institute day (no school for students) |
| Feb. 15 | 4 | Presidents' Day |
| March 1 | 4 | Casimir Pulaski Day |
| March 15 | 4 | Parent-teacher conferences (no school for students) |
| March 22 | 0 | Spring break |
| March 29 | 4 | Spring break |
| May 31 | 4 | Memorial Day |
Teacher workdays: no school for students
Two of the days off are staff days. Teachers work; students stay home. Plan child care as you would for a holiday.
- Monday, Jan. 4: teacher institute day (no school for students)
- Friday, Feb. 12: teacher institute day (no school for students)
Makeup days
Emergency day, Friday, Feb. 12 (only if emergency days are needed), Emergency day, Monday, Feb. 15 (only if emergency days are needed), Emergency day, Monday, March 1 (only if emergency days are needed), Emergency day, Monday, June 7 (only if emergency days are needed), Emergency day, Tuesday, June 8 (only if emergency days are needed), Emergency day, Wednesday, June 9 (only if emergency days are needed), Emergency day, Thursday, June 10 (only if emergency days are needed) and Emergency day, Friday, June 11 (only if emergency days are needed).
Also worth knowing
- The calendar prints no testing dates.
- Some days off may change: teacher institute day (no school for students), Feb. 12 (School day instead if this emergency day is needed), Presidents' Day, Feb. 15 (School day instead if this emergency day is needed) and Casimir Pulaski Day, March 1 (School day instead if this emergency day is needed).
- The last day can move. Emergency days June 7 to 11 are added if needed. The planned last day is Friday, June 4; it can fall from Friday, June 4 to Friday, June 11.
First and last day of school
Aug. 17First day, Monday
June 4 to 11Last day, planned June 4
177School days, by our count
33Weekdays off between them
The first day of school is Monday, Aug. 17, 2026. The last day is Friday, June 4, 2027, with early dismissal, as planned. It can fall anywhere from Friday, June 4 to Friday, June 11: emergency days June 7 to 11 are added if needed.
Teachers start sooner. Staff days before school run Aug. 13 to 14.
Grading periods
The PDF prints no grading periods; these quarter ends come from the district's own events calendar.
| Period | Dates | School days |
|---|---|---|
| 1st quarter | Aug. 17 to Oct. 22 | 46 |
| 2nd quarter (end of 1st semester) | Oct. 26 to Jan. 15 | 43 |
| 3rd quarter | Jan. 19 to April 2 | 44 |
| 4th quarter (end of 2nd semester) | April 5 to June 4 | 44 |
What the district notes
- The calendar's monthly counts add up to 177 student days: 11 in August, 20 in September, 20 in October, 16 in November, 13 in December, 18 in January, 18 in February, 15 in March, 22 in April, 20 in May and 4 in June.
- Emergency days are marked on Feb. 12, Feb. 15 and March 1 and June 7 to 11. The calendar does not say in what order they are used.
- The Board approved the calendar on May 15, 2025, and notes it can be changed at any time by Board vote or for emergencies as determined by the superintendent.
- Report cards post on Jan. 22 and June 4.
Common questions
When does D109 start in 2026?
The first day of school for Deerfield Public Schools District 109 is Monday, Aug. 17, 2026.
When is the last day of school for D109 in 2027?
The last day for students is Friday, June 4, 2027. It is an early release day, as planned. It can fall from Friday, June 4 to Friday, June 11: emergency days June 7 to 11 are added if needed.
When is winter break for D109?
Winter break runs Friday, Dec. 18 to Friday, Jan. 1. Counting weekends and the days next to it, students are out Friday, Dec. 18 to Monday, Jan. 4 and go back Tuesday, Jan. 5.
When is spring break for D109?
Spring break runs Monday, March 22 to Monday, March 29. Counting weekends and the days next to it, students are out Friday, March 19 to Monday, March 29 and go back Tuesday, March 30.
When is Thanksgiving break for D109?
Thanksgiving break runs Wednesday, Nov. 25 to Friday, Nov. 27. Counting weekends, students are out Wednesday, Nov. 25 to Sunday, Nov. 29 and go back Monday, Nov. 30.
Does D109 have early release days in 2026-27?
Yes. Monday, Aug. 17 (half day, time not printed), Thursday, Oct. 22 (half day, morning only; time not printed), Thursday, March 18 (half day, morning only; time not printed) and Friday, June 4 (half day, morning only; time not printed) are for every school.
How do I put the D109 calendar on my phone?
Download one of the .ics files on this page. On an iPhone, open it and tap Add All. On Android or a computer, import it into Google Calendar or Outlook.
How we checked these dates
We read every date off the district's own calendar twice: once from the PDF's text and once from the image, cell by cell against its legend. Then we checked every day off, the conferences, the half days except Aug. 17, and the last day against the district's calendar page and the District 109 Calendar feed. The other dates rest on the district's calendar alone.
Every weekday on this page matches its date. If the district changes its calendar, its page is the final word.
Where each date is on the district's calendar
- First day, Aug. 17: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, August grid, "(^17" (legend "( School Opens", "^ Half Day Inservice - PM"); notes "17 School Opens", "17 Half Day Inservice - PM".
- Last day, June 4: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, June grid, "^4)" (legend ") School Closes"); notes "4 Last Day without Emergency Days", "4 Half Day Inservice - PM". Also: District 109 Calendar (iCal feed from the district's calendar page), "Last Day of School (AM Student Attendance)" June 4.
- When the last day can move, June 4 to 11: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, notes "4 Last Day without Emergency Days", "7 Emergency Days Begin", "11 Emergency Days End"; June grid #7 to #11.
- Teacher institute days before school starts, Aug. 13 to 14: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, August grid, &13 and &14 (legend "& Institute Day - All Day"); notes "13 Teacher Institute Day", "14 Teacher Institute Day".
- Labor Day, Sept. 7: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, September grid, X7 (Legal Holiday); note "7 Legal Holiday - Labor Day". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" Sept. 7.
- No school, Sept. 21: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, September grid, X21; note "21 Not in Attendance". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" Sept. 21.
- Legal holiday (no school), Oct. 12: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, October grid, X12; note "12 Legal Holiday - Not in Attendance". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" Oct. 12.
- Parent-teacher conferences (no school for students), Oct. 23: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, October grid, **23 (legend "** Parent Teacher Conferences - AM (Students Not Present)"); note "23 Parent Teacher Conferences - AM". Also: District 109 Calendar (iCal feed from the district's calendar page), "Family/Teacher Conferences AM (No Student Attendance Day)" Oct. 23.
- Election Day, Nov. 3: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, November grid, X3; note "3 Legal Holiday - Election Day". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" Nov. 3.
- Veterans Day, Nov. 11: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, November grid, X11; note "11 Legal Holiday - Veterans Day". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" Nov. 11.
- Thanksgiving break, Nov. 25 to 27: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, November grid, 25 and 27 struck through (Not in Attendance), X26; notes "25 Not in Attendance", "26 Legal Holiday - Thanksgiving", "27 Not in Attendance". Also: District 109 Calendar (iCal feed from the district's calendar page), "Not in Attendance" Nov. 25 and 27, "District Closed" Nov. 26.
- Winter break, Dec. 18 to Jan. 1: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, December grid, 18, 21 to 24 and 28 to 31 struck through, X25; January grid, X1; notes "18 Winter Break Begins", "25 Legal Holiday - Christmas", "1 Legal Holiday - New Year's Day". Also: District 109 Calendar (iCal feed from the district's calendar page), "Winter Break" Dec. 18 to Jan. 4.
- Teacher institute day (no school for students), Jan. 4: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, January grid, &4; notes "4 School Resumes for Staff", "4 Teacher Institute Day", "5 School Resumes for Students". Also: District 109 Calendar (iCal feed from the district's calendar page), "Institute Day (No Student Attendance)" Jan. 4; "School Resumes for Students" Jan. 5.
- Martin Luther King Jr. Day, Jan. 18: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, January grid, X18; note "18 Legal Holiday - Dr. King's Birthday". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" Jan. 18.
- Teacher institute day (no school for students), Feb. 12: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, February grid,  notes "12 Teacher Institute Day", "12 Possible Emergency Day". Also: District 109 Calendar (iCal feed from the district's calendar page), "Institute Day (No Student Attendance)" Feb. 12.
- Presidents' Day, Feb. 15: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, February grid, X#15; notes "15 Legal Holiday - Presidents' Day", "15 Possible Emergency Day". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" Feb. 15.
- Casimir Pulaski Day, March 1: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, March grid, X#1 (Legal Holiday and Emergency Day); note "1 Legal Holiday - Casimir Pulaski Birthday". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" March 1.
- Parent-teacher conferences (no school for students), March 19: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, March grid, **19; note "19 Parent Teacher Conferences - AM". Also: District 109 Calendar (iCal feed from the district's calendar page), "Family/Teacher Conferences AM (No Student Attendance)" March 19.
- Spring break, March 22 to 29: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, March grid, 22 to 25 and 29 struck through, X26 struck through; notes "22 Spring Break Begins", "26 Not in Attendance", "30 School Resumes". Also: District 109 Calendar (iCal feed from the district's calendar page), "Spring Break" March 22 to 29; "District Closed" March 26.
- Memorial Day, May 31: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, May grid, X31; note "31 Legal Holiday - Memorial Day". Also: District 109 Calendar (iCal feed from the district's calendar page), "District Closed" May 31.
- First day of school, half day, Aug. 17: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, August grid, "(^17"; note "17 Half Day Inservice - PM" (legend "^ Half Day Inservice - PM").
- Parent-teacher conferences, half day (students attend in the morning), Oct. 22: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, October grid, *22 (legend "* Parent Teacher Conferences - PM/Evening (Students 1/2 Day AM)"); note "22 Parent Teacher Conferences - PM/Evening". Also: District 109 Calendar (iCal feed from the district's calendar page), "1/2 Day Student Attendance (AM Only)" Oct. 22.
- Parent-teacher conferences, half day (students attend in the morning), March 18: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, March grid, *18; note "18 Parent Teacher Conferences - PM/Evening". Also: District 109 Calendar (iCal feed from the district's calendar page), "1/2 Day Student Attendance (AM Only)" March 18.
- Last day of school, half day, June 4: Deerfield Public Schools District 109 2026-2027 School Calendar (PDF, approved by the Board of Education May 15, 2025), page 1, June grid, "^4)"; note "4 Half Day Inservice - PM". Also: District 109 Calendar (iCal feed from the district's calendar page), "Last Day of School (AM Student Attendance)" and "1/2 Day Inservice for Staff (PM)" June 4.
- 1st quarter: District 109 Calendar (iCal feed from the district's calendar page), "Quarter 1 Ends" Oct. 22.
- 2nd quarter (end of 1st semester): District 109 Calendar (iCal feed from the district's calendar page), "Semester 1 & Quarter 2 End" Jan. 15.
- 3rd quarter: District 109 Calendar (iCal feed from the district's calendar page), "Quarter 3 Ends" April 2.
- 4th quarter (end of 2nd semester): District 109 Calendar (iCal feed from the district's calendar page), "Semester 2 & Quarter 4 End" June 4.